| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 7 | Ludwig Heimrath (CDN)
Paul Miller (USA) |
Porsche 934/5 930 770 0958 | Heimrath Racing | 240 | 5:59:58,827 | 2. | TA2 | 5. | 1:25,175 |
| 2. | 23 | Eddie Cheever (USA)
Gilles Villeneuve (CDN) |
BMW 320i | BMW Faltz Assen | 234 | 6:01:08,387 | 1. | Gr.5 | 11. | 1:30,106 |
| 3. | 44 | Bob Tullius (USA)
Brian Fuerstenau (USA) |
Jaguar XJS | Group 44 Inc. | 229 | 6:00:06,608 | 1. | TA1 | 14. | 1:31,347 |
| 4. | 98 | Tom Spalding (USA)
John Bauer (USA) Elliot Forbes-Robinson (USA) |
Porsche Carrera RSR | Tom Spalding Racing | 227 | 6:00:19,365 | 2. | TA1 | 17. | 1:34,040 |
| 5. | 9 | Klaus Bytzek (CDN)
Rudy Bartling (CDN) Harry Bytzek (CDN) |
Porsche Carrera RSR | Bytzek Automotive Design | 224 | 3. | TA2 | 13. | 1:30,564 | |
| 6. | 13 | Hal Shaw, Jr. (USA)
Howard Meister (USA) |
Porsche Carrera RSR | Bankrupt Inc. Racing | 224 | 4. | TA2 | 16. | 1:33,822 | |
| 7. | 88 | Peter Overing (CDN)
Fritz Hochreuter (CDN) Marcel Talbot (CDN) |
Porsche Carrera RSR | Dicom Corporation | 222 | 5. | TA2 | 20. | 1:35,915 | |
| 8. | 2 | David Hobbs (GB)
Ronnie Peterson (S) |
BMW 320i Turbo | McLaren North America | 215 | 2. | Gr.5 | 3. | 1:22,905 | |
| 9. | 60 | John Brandt (USA)
Michael Oleyar (USA) |
Chevrolet Corvette 350 | Brandt Moving & Storage | 214 | 3. | TA1 | 23. | 1:37,199 | |
| 10. | 18 | Eitel Maier (CDN)
Jerry Jolly (USA) |
Porsche Carrera RSR | Eitel Maier | 200 | 6. | TA2 | 22. | 1:36,809 | |
| 11. | 90 | Thomas Rynone (USA)
Michael Wiernicki (USA) Neil Wiernicki (USA) |
Chevrolet Corvette 427 | Rynone Industries | 199 | 4. | TA1 | 19. | 1:35,632 | |
| NRF | 57 | John Wood (USA)
Chip Mead (USA) Bob Lazier (USA)* |
Porsche 911 | John Wood Racing | 187 | Engine | 5. | TA1 | 18. | 1:34,043 |
| NC | 0 | Monte Shelton (USA)
Skeeter McKitterick (USA) Hurley Haywood (USA)* |
Porsche 934/5 930 670 0179? | Vasek Polak Racing | 154 | 7. | TA2 | 7. | 1:26,015 | |
| DNF | 75 | Norm Ridgely (CDN)
Jim Cook (USA) |
Porsche Carrera RSR | Ridgely Racing | 114 | Engine | 8. | TA2 | 10. | 1:29,665 |
| DNF | 31 | Warren Agor (USA)
Paul Nichter (USA) |
Chevrolet Monza 350 | Warren Agor | 94 | Differential | 9. | TA2 | 9. | 1:27,318 |
| DNF | 80 | Nick Engels (USA)
Bob Nagel (USA) |
Chevrolet Corvette 427 | Nagel Racing | 92 | Engine | 6. | TA1 | 15. | 1:32,077 |
| DNF | 16 | George Follmer (USA)
Brett Lunger (USA) Monte Shelton (USA)* |
Porsche 935 930 770 0913 | Vasek Polak Racing | 80 | Valve rocker | Gr.5 | 2. | 1:22,167 | |
| DNF | 61 | Jim Busby (USA)
Eppie Wietzes (CDN) |
Porsche 935 930 770 0910 | Jim Busby Racing | 45 | Engine | Gr.5 | 6. | 1:25,302 | |
| DNF | 19 | Chris Cord (USA)
Jim Adams (USA) |
Chevrolet Monza 350 | Chris Cord Racing | 42 | Engine | 10. | TA2 | 8. | 1:26,294 |
| DNF | 45 | James Mancuso (USA)
William Coykendall (USA)^ |
Chevrolet Corvette 355 | Motion Marketing | 37 | Differential | 7. | TA1 | 24. | 1:43,781 |
| DNF | 1 | Jacky Ickx (B)
Manfred Schurti (FL)^ |
Porsche 935/77 005 | Martini Racing Porsche System | 34 | Head gasket | Gr.5 | 1. | 1:20,123 | |
| DNF | 5 | Bill Adam (CDN)
Cam Champion (CDN)^ |
Chevrolet Corvette | Dead Bear Racing | 15 | Accident | 8. | TA1 | 12. | 1:30,176 |
| DSQ | 59 | Peter Gregg (USA)
Bob Wollek (F) |
Porsche 934/5 930 770 0952 | Brumos Porsche+Audi | 243 | 5:59:51,288/Illegal suspension (was 1st) | 1. | TA2 | 4. | 1:23,416 |
| DNS | 11 | Murray Edwards (CDN)
Karl Karlson (USA) |
Chevrolet Corvette | M. E. Racing | TA1 | 21. | 1:36,005 | |||
| DNS | 36 | Brian Hardacre (CDN) | Porsche Carrera RSR | Brian Hardacre | Co-driver not named | TA2 | 25. | 1:44,340 | ||
| DNA | 6 | Greg Pickett (USA)
Tom Gloy (USA) |
Chevrolet Monza 350 DeKon 1010 | Pickett Racing | TA2 |
| Winning Time: 5h59m58.827, 98.365 mph/158.303 kph |
| Fastest Lap: Jacky Ickx #1 (Porsche 935-77), 1m21.948, 108.025 mph/173.848 kph |
| * Driver entered for car, but never drove it at meeting |
| ^ Driver practiced car, but did not race it |
| RES - Reserve (Practiced, on standy-by for start) |
| REE - Reserve Entry |
| DNA - Did Not Arrive |
| DNS - Did Not Start |
| DNF - Did Not Finish |
| DNP - Did Not Practice |
| NC - Not Classified |
| DSQ - Disqualified |
| NRF - Not Running At Finish |
| NAC - Not Accepted |
| REJ - Rejected (Did not pass scrutineering) |